There are 300 more suspected noncitizens on Colorado`s voter rolls, Secretary of State Gessler announced Tuesday in the latest chapter of a contentious national debate over what Republicans say is vulnerability in the voting system.

The latest figures are from the 3,903 people who received letters from Gessler`s office questioning their citizenship in August. During a first round of checks, Gessler said 141 others were found to be possible noncitizens based on a federal immigration database.

Gessler`s office said it has mailed letters to people believed to be ineligible voters, alerting them about the database findings so they can verify their citizenship or voluntarily remove their registrations. He has also forwarded their names to county clerks for any potential challenge at the polls if they show up to cast ballots.

And guess for whom these illegal voters are casting their ballots:

Of the 441 identified as suspected noncitizens, 232 are unaffiliated, 163 are Democrats, and 37 are Republican. Gessler`s office has said they did not look at party registration when checking the voter rolls for possible fraud.

No surprises and the usual suspects are opposed to illegal voting, but also opposed to enforcing laws against illegal voting by aliens:

“It`s suspiciously close to the election for someone who has been so partisan for this kind behavior,” said Ellen Dumm, a consultant working for voting rights in Colorado.

Dumm said everyone agrees ineligible voters shouldn`t cast ballots. But she argued that Gessler should focus on more important issues, like making sure the secretary of state`s office website functions properly to allow people to register to vote, and coordinating with clerks on election issues before November. She said the 441 figure amounts to a “rounding error” in the greater scheme, considering there are 3.5 million registered voters in Colorado.